10 Smart Home Gadgets Under $50 That Boost Energy Efficiency in Your Rental Apartment

Looking to lower your energy bills and shrink your carbon footprint, but don’t want to spend a fortune or make permanent changes to your rental? The good news: Smart home technology is more affordable and renter-friendly than ever. With a modest budget of $50 or less, you can snag devices that make your apartment more energy-efficient—no drilling or hardwiring needed.

In this article, we’ll highlight 10 smart home gadgets under $50 that are perfect for renters. These compact, easy-to-install solutions deliver real energy savings and a greener lifestyle. Let’s dive in!

Why Energy Efficiency Matters for Renters

Apartment living often comes with limitations—like outdated appliances or drafty windows—that can hike up your utility bills. As a renter, you may not have the freedom to renovate, but you can use smart gadgets to:

• Reduce electricity and heating/cooling costs
• Enjoy greater comfort and convenience
• Lower your environmental impact
• Create a high-tech home environment without altering the property

10 Affordable Smart Devices to Slash Your Utility Costs

1. Smart Plugs

Cost: $10–$25

Plug-and-play smart plugs are an effortless way to make almost any appliance “smart.” Use them to control lamps, fans, kitchen devices, or entertainment systems from your smartphone or with voice commands.

• Automate schedules so devices turn off when not needed
• Eliminate “vampire power” by cutting off power to electronics that suck energy even when off
• Simple installation—just plug in and connect!

2. LED Smart Bulbs

Cost: $10–$20 per bulb

Switching out standard bulbs for smart LEDs is a quick win. These bulbs:

• Use up to 80% less energy than traditional incandescent bulbs
• Can be turned on/off remotely or scheduled to avoid waste
• Offer dimming, color temperature adjustment, and voice control options
• Are easy to swap out—just screw in and connect to Wi-Fi

3. Programmable Smart Power Strips

Cost: $25–$45

Many electronics drain power even when switched off. A smart power strip helps by:

• Letting you control each outlet individually via app or voice
• Scheduling “off” times to cut energy use overnight or when you’re out
• Tracking energy consumption of each device plugged in

A great solution for computers, home theaters, or kitchen appliances.

4. Smart Thermostat Controllers

Cost: $20–$50

Full smart thermostats may not be an option for renters, but smart thermostat controllers—little infrared devices that “teach” your standard wall AC or heater to operate smarter—are renter-friendly and effective. They:

• Offer app scheduling and remote control for wall- or window-mounted AC units
• Let you set routines (like “pre-cool before you get home”)
• Support temperature and humidity monitoring

No hardwiring—simply aim and use! Always check compatibility with your unit.

5. Window and Door Sensors

Cost: $15–$30

These small, battery-powered sensors alert you when a window or door is open—helping you cut wasteful cooling and heating. Use them to:

• Send alerts to your phone if a window is left open while heat or AC is running
• Integrate with other smart devices to automate actions (e.g., turn off AC if a window opens)
• Keep a log of activity for security and energy management

6. Smart Radiator Valves

Cost: $40–$50

For apartments with old-school radiator heat, smart radiator valves replace your existing valve controllers (no plumbing skills required). Benefits:

• Programmable temperature control on a room-by-room basis
• Boosts comfort and slashes waste by not overheating rooms
• No permanent modifications needed

Check compatibility with your radiator before purchasing.

7. Smart Motion Sensors & Lighting

Cost: $15–$45

Automatically turning off lights when a room is empty is a simple but powerful energy hack.

• Motion detection triggers lights only when someone is present
• Works with most smart bulbs or plugs for easy integration
• Perfect for bathrooms, hallways, closets, and entryways

8. Water Leak Sensors

Cost: $25–$50

While not directly energy-saving, smart water leak detectors prevent major water waste and damage. Plus, if you have a rental with a water heater, leaks can cost you energy and money. Features include:

• Instant phone alerts if leaks are detected
• Easy placement under sinks, near water heaters, or by laundry units
• No tools or wiring required

9. Smart Room Thermometers & Monitors

Cost: $15–$40

Monitoring your apartment’s temperature and humidity in real time lets you optimize heating, cooling, and air quality. These gadgets:

• Sync readings to your smartphone
• Help you adjust thermostat settings more precisely
• Can trigger other smart devices (e.g., fans or heaters) if connected via a smart hub

10. Smart Blinds or Curtain Controllers

Cost: $40–$50

Daylight impacts your heating and cooling costs—and you can automate window coverings for maximum efficiency. Smart blind controllers:

• Open or close blinds/curtains automatically, using timers or environmental triggers
• Let sunlight in for warmth during winter days or block it during summer peaks
• Easily install on most corded blinds or curtains; no complex setup

How to Choose the Right Smart Gadget for Your Rental

Not sure where to start? Consider these tips for maximum savings and convenience:

• Check compatibility with your apartment’s devices (e.g., AC type, radiator style, Wi-Fi network)
• Prioritize your biggest energy drains: Lighting, heating/cooling, or electronics?
• Favor device portability—so you can take your smart gadgets with you when you move
• Look for app integration or compatibility with your smart home system (Alexa, Google Home, etc.) for seamless control
• Ensure you don’t violate your lease—most of these gadgets are non-invasive, but always ask your landlord if unsure

Renter-Friendly Installation Tips

• Smart plugs and bulbs: Fully plug-and-play—no tools, no drilling
• Smart thermostatic controllers & radiator valves: Most use sticky pads or simple screw-on fittings, safe for walls and surfaces
• Wireless sensors: Attach with removable adhesive strips (Command strips are your friend!)
• Take before-and-after photos to restore the apartment on move-out if needed

More Ways to Boost Energy Efficiency in Your Rental

Smart gadgets are a fantastic start, but these low-tech tips will help you save even more:

• Seal leaky windows or doors with weatherstripping or draft blockers
• Use blackout or thermal curtains to minimize heat loss/gain
• Keep vents and radiators clear of obstructions
• Switch to Energy Star-certified small appliances when possible
• Unplug unused chargers or electronics